7053923
domain: N
Appears in sequences
- Half the number of nX4 binary arrays with each element equal to at least one neighbor.at n=6A180764
- Half the number of nX7 binary arrays with each element equal to at least one neighbor.at n=3A180767
- T(n,k) = half the number of n X k binary arrays with each element equal to at least one neighbor.at n=48A180771